Valve-locking device



'Dec. 28 1926.

c. w. FISHER VALVE} LOCKING DEVICE Filed Oct. 15, 1923 Patented Dec. 28, 1926.

PATENT OFFICE.

CHARLES W. FISHER, F

SPRINGFIELD, OHIO, ASSIGNOR TO THE 0. S. KELLY COM- PANY, OF SPRINGFIELD, OHIO, A CORPORATION OF OHIO.

VALVE-LOCKING DEVICE.

Application filed October 15, 1923. Serial No. 668,465.

My invention relates to valve locking devices, it particularly relating to a device for locking valves of the screw type.

The object of the invention is to provide a 6 simple and effective device for locking or holding a screw valve in different positions of adjustment.

In the accompanying drawings:

Fig. 1 is a vertical section of a carbureter showing my improved locking device associated with a pair of screw valves which form a part of the carbureter.

Fig. 2 is a section on the line 5-5 oi Fig. 1.

Fig. 3 is a perspective view of a portion ot the locking device.

In the drawings, I have illustrated the use to which my improved locking device may be put by showing it associated with the screw valves of a carbureter 1. There is provided a plate stamped from spring sheet metal consisting of a main portion and reduced portion A1. The main portion 40 is provided with a pair of orifices 4:2 and 43, the orifice 43 being provided with a bushing 4.4 having a threaded bore. The main portion 40 is bent upon itself to substantially the position shown in Fig. 3 so that the valve 16' may be threaded into the bushing and also extend through the orifice The resiliency of the metal holds the threads of the bushing in frictional engagement with the threads of the valve so as to prevent the valve from turning. The 35 down-turned end of the portion 41 is inserted in a recess 45 in the casing to prevent the look from turning. To adjust the valve that portion of the spring plate which carries the bushing is pressed by the finger oi the operator to bring the bushing in axial stem consisting of a plate of spring metal provided with two apertures, one of which is threaded to receive the threads of said stem, said plate being capable of being sprung so as to bring said apertures into substantial alignment to receive said stem, the resiliency of the metal of the plate being adapted to cause the threads to bind and lock said stem from turning.

2. A locking device for a threaded valve stem consisting of a plate of spring metal provided with two apertures, said plate capable of being sprung so as to bring said apertures in substantial alignment to receive on said threaded stem, a threaded bushing in one of said apertures in which said stem is adapted to be threaded the resiliency of the metal of the plate adapted tocause the threads to bind and lock said stem from turning, and means for holding said plate from turning.

3. A locking device for a threaded valve stem consisting of a plate of spring metal provided with two apertures, one of which is threaded to receive the threads of said stem, said apertures being normally out of alignment but being brought into alignment by springing said plate, the resiliency oi the metal of the plate being adapted to cause the threads to bind and lock said stem from turning.

In testimony whergo't, I have hereunto set my hand this 10th day of October, 1923.

CHARLES IV. FISHER. 

